Modular high density telecommunications frame and chassis system

ABSTRACT

A fiber optic telecommunications device includes a frame defining a right vertical support and a left vertical support. A chassis is mounted to the right and left vertical supports, wherein the chassis is configured to pivot about a pivot axis that is defined by one of the right and left vertical supports. A plurality of modules are mounted on the chassis, each of the modules slidable on the chassis along a direction extending between the right and left vertical supports, wherein the chassis is configured to pivot about a plane parallel to the sliding direction of the modules, each module defining fiber optic connection locations.

CROSS-REFERENCE TO RELATED APPLICATIONS

The present application is a continuation of U.S. patent application Ser. No. 15/256,167, filed Sep. 2, 2016, now U.S. Pat. No. 9,952,398; which is a continuation of U.S. patent application Ser. No. 14/213,077, filed Mar. 14, 2014, now U.S. Pat. No. 9,435,975; which claims the benefit of U.S. Provisional Patent Application Ser. No. 61/790,127, filed Mar. 15, 2013, which applications are hereby incorporated by reference in their entireties.

TECHNICAL FIELD

The present disclosure relates generally to fiber optic telecommunications equipment. More specifically, the present disclosure relates to a modular fiber optic frame and chassis system designed for high density applications.

BACKGROUND

In telecommunications industry, the demand for added capacity is growing rapidly. This demand is being met in part by the increasing use and density of fiber optic transmission equipment. Even though fiber optic equipment permits higher levels of transmission in the same or smaller footprint than traditional copper transmission equipment, the demand requires even higher levels of fiber density. This has led to the development of high-density fiber handling equipment.

An example of this type of equipment is found in U.S. Pat. No. 6,591,051 (the '051 patent) assigned to ADC Telecommunications, Inc. This patent concerns a high-density fiber distribution frame and high-density fiber termination blocks (FTBs) which are mounted to the frame. Because of the large number of optical fibers passing into and out of the FTBs, the frame and blocks have a variety of structures to organize and manage the fibers. Some structures are used to aid the fibers entering the back of the frame and FTBs. Other structures are provided for managing the cables leaving the FTBs on the front. The FTBs also include structures for facilitating access to the densely packed terminations. One such structure is a slidable adapter module that is incorporated into the FTBs to allow selective access to the densely packed terminations inside the FTBs.

Further development in such fiber termination systems is desired.

SUMMARY

The present disclosure relates to fiber optic telecommunications devices. The telecommunications devices include a modular frame and chassis system for housing a high density of fiber optic connection locations.

According to one example aspect, the disclosure relates to a fiber optic telecommunications device that includes a frame defining a right vertical support and a left vertical support. A chassis is mounted to the right and left vertical supports, wherein the chassis is configured to pivot about a pivot axis that is defined by one of the right and left vertical supports. A plurality of modules are mounted on the chassis, each of the modules slidable on the chassis along a direction extending between the right and left vertical supports, wherein the chassis is configured to pivot about a plane parallel to the sliding direction of the modules, each module defining fiber optic connection locations.

According to another example aspect, the disclosure relates to a fiber optic chassis comprising a right rack mount portion and a left rack mount portion and at least one slide extending between the right and left rack mount portions. One of the right rack mount portion and the left rack mount portion defines at least a part of a hinge structure for pivotally mounting the fiber optic chassis to a telecommunications fixture. A plurality of modules is mounted on the chassis along a horizontal stack extending between the right and left rack mount portions. Each of the modules is slidable on the slide along a direction extending between the right and left rack mount portions, each module configured to receive fiber optic equipment defining fiber optic connection locations.

According to another aspect, the disclosure relates to a fiber optic chassis comprising a right rack mount portion and a left rack mount portion and at least one slide extending between the right and left rack mount portions. A plurality of modules are mounted on the chassis in a stacked configuration extending between the right and left rack mount portions, each module configured to receive fiber optic equipment defining connection ports that face out along a front to back direction. Each of the modules is slidable on the slide along a direction extending between the right and left rack mount portions that is perpendicular to the front to back direction.

According to another example aspect, the disclosure relates to a telecommunications module for slidable mounting to a telecommunications chassis. The module includes a housing portion configured to removably receive fiber optic equipment defining fiber optic connection locations, the housing portion defining a right side, a left side, a front side, and a rear side, wherein the housing portion is configured such that the fiber optic connection locations are accessible from at least one of the front side and the rear side. A plurality of holes extend from the right side to the left side of the housing portion for receiving slides for slidably coupling the module to the telecommunications chassis. The module further includes a cable management structure in the form of a split-ring for receiving cables extending to and from the fiber optic connection locations.

A variety of additional inventive aspects will be set forth in the description that follows. The inventive aspects can relate to individual features and combinations of features. It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the broad inventive concepts upon which the embodiments disclosed herein are based.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a front perspective view of a telecommunications chassis having features that are examples of inventive aspects in accordance with the principles of the present disclosure, the chassis shown in isolation, not mounted to a telecommunications rack;

FIG. 2 is a top perspective view of the chassis of FIG. 1;

FIG. 3 is a bottom perspective view of the chassis of FIG. 1;

FIG. 4 is a right side perspective view of the chassis of FIG. 1;

FIG. 5 illustrates a front perspective view of the chassis of FIG. 1, wherein the chassis is shown in an empty configuration without fiber optic cassettes of the chassis mounted within slidable carrier modules of the chassis;

FIG. 6 is a top perspective view of the empty chassis of FIG. 5;

FIG. 7 is a bottom perspective view of the empty chassis of FIG. 5;

FIG. 8 is a right side perspective view of the empty chassis of FIG. 5;

FIG. 9 illustrates a portion of a telecommunications rack showing two of the chassis of FIG. 1 pivotally mounted on the rack;

FIG. 10 is a top view of the chassis of FIG. 1 mounted on a telecommunications rack, wherein the chassis is shown in a non-pivoted, fully closed position;

FIG. 11 illustrates the chassis of FIG. 10 in a partially pivoted position with respect to the rack;

FIG. 12 illustrates the chassis of FIG. 10 in a fully pivoted, open position with respect to the rack;

FIG. 13 illustrates a standard telecommunications rack with eleven of the chassis of FIG. 1 mounted in a vertically stacked arrangement on the rack;

FIG. 14 illustrates a standard telecommunications rack with fourteen of the chassis of FIG. 1 mounted in a vertically stacked arrangement on the rack;

FIG. 15 illustrates a standard telecommunications rack with seventeen of the chassis of FIG. 1 mounted in a vertically stacked arrangement on the rack;

FIG. 16 illustrates a standard telecommunications rack with twenty-one of the chassis of FIG. 1 mounted in a vertically stacked arrangement on the rack;

FIG. 17 is a front, left side perspective view of a telecommunications frame including two sets of the telecommunications chassis of FIG. 1 mounted in a back-to-back configuration with a cable storage panel located thereinbetween;

FIG. 18 is a top, right side perspective view of the telecommunications frame of FIG. 17;

FIG. 19 is a left side view of the telecommunications frame of FIG. 17;

FIG. 20 is a right side perspective view showing a portion of the frame of FIG. 17;

FIG. 21 shows a portion of the telecommunications frame of FIG. 17 with one example cable routing configuration on the left side of the frame;

FIG. 22 illustrates the cable storage panel of the telecommunications frame of FIG. 17, the cable storage panel shown in isolation, not mounted to the frame of FIG. 17;

FIG. 23 illustrates close-up views of the top portion and the bottom portion of the cable storage panel of FIG. 22;

FIG. 24 illustrates a side view of the telecommunications frame of FIG. 17 with only one set of the telecommunications chassis of FIG. 1 mounted to one side (e.g., the front side) of the frame and with a right vertical support of the cable storage panel removed to illustrate the internal cable management structures of the cable storage panel from the side view;

FIG. 25 illustrates close-up views of the top portion and the bottom portion of the telecommunications frame of FIG. 24;

FIG. 26 is a left side, top perspective view of one of the carrier modules that is configured for slidable mounting on the telecommunications chassis of FIG. 1;

FIG. 27 is a right side, top perspective view of the slidable carrier module of FIG. 26;

FIG. 28 is a left side, bottom perspective view of the slidable carrier module of FIG. 26;

FIG. 29 is another bottom, left side perspective view of the slidable carrier module of FIG. 26;

FIG. 30 is a left side view of the slidable carrier module of FIG. 26;

FIG. 31 is a right side view of the slidable carrier module of FIG. 26;

FIG. 32 is a close-up view of a portion of the slidable carrier module of FIG. 31;

FIG. 33 is a front view of the slidable carrier module of FIG. 26;

FIG. 34 is a rear view of the slidable carrier module of FIG. 26;

FIG. 35 is a left side, top perspective view of the carrier module of FIG. 26 shown without a fiber optic cassette mounted therein;

FIG. 36 is a right side, top perspective view of the slidable carrier module of FIG. 35;

FIG. 37 is a left side, bottom perspective view of the slidable carrier module of FIG. 35;

FIG. 38 is another bottom, left side perspective view of the slidable carrier module of FIG. 35;

FIG. 39 is a left side view of the slidable carrier module of FIG. 35;

FIG. 40 is a right side view of the slidable carrier module of FIG. 35;

FIG. 41 is a close-up view of a portion of the slidable carrier module of FIG. 40;

FIG. 42 is a front view of the slidable carrier module of FIG. 35;

FIG. 43 is a right side, top, front perspective view of a fiber optic cassette configured for placement into one of the slidable carrier modules that is shown in FIG. 35;

FIG. 44 is a left, top side perspective view of the fiber optic cassette of FIG. 43;

FIG. 45 is a left, bottom side perspective view of the fiber optic cassette of FIG. 43;

FIG. 46 is a front, left side perspective view of the fiber optic cassette of FIG. 43;

FIG. 47 is a left side view of the fiber optic cassette of FIG. 43;

FIG. 48 is a right side view of the fiber optic cassette of FIG. 43;

FIG. 49 is a close-up view of a portion of the fiber optic cassette of FIG. 48;

FIG. 50 is a front view of the fiber optic cassette of FIG. 43;

FIG. 51 is a left side, top perspective view of another embodiment of a carrier module that is configured for slidable mounting on the telecommunications chassis of FIG. 1;

FIG. 52 is a right side, top perspective view of the slidable carrier module of FIG. 51;

FIG. 53 is a left side, bottom perspective view of the slidable carrier module of FIG. 51;

FIG. 54 is another bottom, left side perspective view of the slidable carrier module of FIG. 51;

FIG. 55 is a left side view of the slidable carrier module of FIG. 51;

FIG. 56 is a right side view of the slidable carrier module of FIG. 51;

FIG. 57 is a close-up view of a portion of the slidable carrier module of FIG. 56;

FIG. 58 is a front view of the slidable carrier module of FIG. 51;

FIG. 59 is a rear view of the slidable carrier module of FIG. 51;

FIG. 60 illustrates a left side, top perspective view of the slidable carrier module of FIG. 51 with a slidable cable storage module coupled thereto;

FIG. 61 is a right side, top perspective view of the slidable carrier module and the coupled cable storage module of FIG. 60;

FIG. 62 is a left side, bottom perspective view of the slidable carrier module and the coupled cable storage module of FIG. 60;

FIG. 63 is another bottom, left side perspective view of the slidable carrier module and the coupled cable storage module of FIG. 60;

FIG. 64 is a left side view of the slidable carrier module and the coupled cable storage module of FIG. 60;

FIG. 65 is a right side view of the slidable carrier module and the coupled cable storage module of FIG. 60;

FIG. 66 is a close-up view of a portion of the slidable carrier module and the coupled cable storage module of FIG. 65;

FIG. 67 is a front view of the slidable carrier module and the coupled cable storage module of FIG. 60; and

FIG. 68 is a rear view of the slidable carrier module and the coupled cable storage module of FIG. 60.

DETAILED DESCRIPTION

Reference will now be made in detail to examples of inventive aspects of the present disclosure which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts.

Referring now to FIGS. 1-8, a modular, high density telecommunications chassis 10 having features that are examples of inventive aspects in accordance with the principles of the present disclosure is disclosed. In FIGS. 1-8, the chassis 10 is shown in isolation, removed from a telecommunications rack or frame. In FIGS. 9-25, the chassis 10 is shown mounted on telecommunications fixtures such as telecommunications racks or frames, which will be described in further detail below. It should be noted that in the present disclosure, the terms “rack” and “frame” will be used interchangeably.

Referring back to FIGS. 1-8, the chassis 10 defines a right side 12, a left side 14, a front side 16, a rear side 18, a top side 20, and a bottom side 22. The chassis 10 is configured to house a plurality of slidable carrier modules 24. As will be discussed in further detail below, the carrier modules 24 are configured to house equipment defining fiber optic connection or termination locations or terminals 26. According to one example embodiment, the fiber optic connection locations 26 may be defined by equipment such as fiber optic cassettes 28. An example of a fiber optic cassette 28 which may be used with the chassis 10 shown in FIGS. 1-8 is illustrated in isolation in FIGS. 43-50. Such fiber optic cassettes 28 may be removable devices and may be loaded to the carrier modules 24 as desired. In the depicted example, the chassis 10 is shown populated with the fiber optic cassettes 28 in FIGS. 1-4. In FIGS. 5-8, the chassis 10 is shown in an empty configuration without the fiber optic cassettes 28 mounted to the carrier modules 24 of the chassis. As will be explained in further detail below, the cassettes 28 may provide terminals 26 in the form of fiber optic adapters 30 accessible from the front ends 32 of the cassettes 28. The fiber optic adapters 30 may be LC-type, SC-type, or other formats of adapters 30.

The chassis 10 defines a pair of chassis supports 34 at the rear side 18 that extend between a right end cap 36 and a left end cap 38, the chassis supports 34 configured to provide reinforcement to the modular chassis 10. The chassis 10 also includes a plurality of slide structures 40 that extend between the right and left end caps 36, 38. The slide structures 40 are configured to slidably receive the carrier modules 24 and allow the carrier modules 24 to slide along a right to left direction within the chassis 10. The slidability of the carrier modules 24 allows technicians to isolate specific carrier modules 24 for connectivity work on those modules 24. The slidability also allows technicians to access rear connection locations 26 on the fiber optic cassettes 28 mounted on the carrier modules 24.

Referring back to FIGS. 1-8, the chassis 10 may be configured such that the right and left end caps 36, 38 are removable structures. The chassis supports 34 and the slides 40 may define pin-like structures that are received by the end caps 36, 38 for the removable mounting of the end caps 36, 38.

According to an example embodiment of the disclosure, the chassis 10 is configured to be pivotally mounted to a fixture such as a standard telecommunications rack 42. The rear side 18 of the chassis 10 (and fiber optic connection locations 26 at the rear 44 of the carrier modules 24) can be accessed by pivoting the chassis 10. In the depicted embodiment, the left end cap 38 defines hinge pins 46. The hinge pins 46 may be inserted into hinge receptacles provided on one of the vertical rack supports that define the rack 42. Along with the hinge receptacles, the hinge pins 46 form a hinge structure for providing pivotability to the chassis 10.

As noted above, the modular chassis 10 may be mounted on a variety of different telecommunications fixtures. As an example, in FIGS. 9-12, a portion of a telecommunications rack 42 is shown, wherein two of the chassis 10 are pivotally mounted thereon. The pivotal action of the chassis 10 when mounted to such a rack 42 is shown in FIGS. 10-12. FIG. 10 illustrates the chassis 10 mounted on the telecommunications rack 42 from the top view, wherein the chassis 10 is shown in a non-pivoted, fully closed position. FIG. 11 illustrates the chassis 10 of FIG. 10 in a partially pivoted position with respect to the rack 42. And, FIG. 12 illustrates the chassis 10 of FIG. 10 in a fully pivoted, open position with respect to the rack 42.

When the chassis 10 is mounted on a standard telecommunications rack such as the rack 42 shown in FIGS. 9-12, the chassis 10 takes up two standard rack spaces and may be classified as a 2RU (2 standard rack unit) chassis. The width of the chassis may be sized according to the width of the rack used (e.g., 19 inches for a 19-inch telecommunications rack). As shown in FIGS. 1-8, a standard 19-inch chassis 10 may house up to twenty-four slidable carrier modules 24, with enough spacing S provided to accommodate the slidable movement of the modules 24 for access.

The density of the fiber optic connections 26 that may be provided by the chassis 10 of the present disclosure, when being mounted on a standard telecommunications rack 42, is illustrated by FIGS. 13-16. FIG. 13 illustrates a standard telecommunications rack 42 with eleven of the chassis 10 of FIGS. 1-8 mounted in a vertically stacked arrangement on the rack 42. FIG. 14 illustrates a standard telecommunications rack 42 with fourteen of the chassis 10 of FIGS. 1-8 mounted in a vertically stacked arrangement on the rack 42. FIG. 15 illustrates a standard telecommunications rack 42 with seventeen of the chassis 10 of FIGS. 1-8 mounted in a vertically stacked arrangement on the rack 42. FIG. 16 illustrates a standard telecommunications rack 42 with twenty-one of the chassis 10 of FIGS. 1-8 mounted in a vertically stacked arrangement on the rack 42.

As depicted, the right end cap 36 of the chassis 10 may include a mounting flange 48. The mounting flange 48 can include a variety of structures for locking and unlocking the chassis 10 with respect to a right vertical rack support 50 of the rack 42. For example, according to one example, the mounting flange 48 and the right vertical rack support 50 can define a swell-latch type locking arrangement. For the purposes of pivotability, the configurations of the right and left sides of the chassis 10 can be reversed.

Other types of telecommunications fixtures to which the chassis 10 of the present disclosure may be mounted include other types of racks or frames. For example, FIGS. 17-25 illustrate a telecommunications frame 52 wherein two sets of the telecommunications chassis 10 may be mounted in a back-to-back configuration. A cable storage panel 54, further details of which will be described below, may be provided between the two sets of chassis 10 for storage of cabling that extend from the rear connection locations 26 of the carrier modules 24.

As noted above, the chassis 10 of the present disclosure is configured to be a completely modular structure that can be formed from removable structures and can be populated with the desired number of slidable carrier modules 24. As shown in FIGS. 1-4, when the chassis 10 is populated with the carrier modules 24, there is a predetermined amount of spacing S provided to allow slidability of the modules 24 along a right to left direction to access the rear side 44 of the carrier modules 24.

In addition to the slidable carrier modules 24, each chassis 10 may also include a slidable cable management module 56. The cable management module 56 may define a chassis cable management structure 58 in the form of a ring 60 for managing all of the cables 62 that are extending to or from the individual carrier modules 24. In the depicted embodiment, the cable management ring 60 may define a split-ring configuration with a notch 64 for receiving cables 62 into the rings 60 for management. The cable management module 56 defines slide holes 66 that receive the slide structures 40 of the chassis 10 to allow right to left travel of the cable management module 56.

Regarding each of the slidable carrier modules 24, one of the slidable carrier modules 24 is shown in isolation in FIGS. 26-34 with a fiber optic cassette 28 loaded therein. The slidable carrier module 24 is shown without a fiber optic cassette 28 in FIGS. 35-42.

Now referring to FIGS. 26-42, each slidable carrier module 24 defines a housing portion 68 for receiving equipment such as a fiber optic cassette 28 and a cable management portion 70. According to the depicted embodiment, the cable management portion 70 is defined by a cable management ring 72 similar to that of the cable management module 56. The cable management ring 72 may define a split-ring configuration with a notch 74 for receiving cables 62 into the ring 72 for management. The cable management ring 72 defines a slightly cone-shaped configuration. Each carrier module 24 also defines a recess 76 for accommodating a portion of the cable management ring 72 from an adjacent carrier module 24 when the carrier modules 24 are in a stacked configuration from left to right.

The carrier module 24 defines slide holes 78 for receiving the slide structures 40 of the chassis 10 to allow slidable travel of the carrier modules 24.

Now referring back to FIGS. 17-25, as noted above, the pivotable aspect of the chassis 10 of FIGS. 1-4 allows the chassis 10 to be mounted on a telecommunications frame 52 in a back-to-back configuration. In such a configuration, the frame 52 may define right and left vertical rack supports 80, 82 at a front side 84 of the frame 52 for mounting a first set of chassis 10 and right and left vertical rack supports 86, 88 at a rear side 90 of the frame 52 for mounting second set of chassis 10.

The telecommunications frame 52 depicted in FIGS. 17-25 includes a cable management panel 54 positioned between the two sets of chassis 10. Positioned as such, the cable management panel 54 can manage cabling 62 extending from the rear sides 33 of the cassettes 28 mounted within the carrier modules 24 of the chassis 10 and can be accessed due to the pivotability of the chassis 10.

The cable management panel 54 is mounted to the right and left vertical rack supports 80, 82 at the front side 84 of the frame 52 and also the right and left vertical rack supports 86, 88 at the rear side 90 of the frame 52. The cable management panel 54 defines a right vertical support 92, a left vertical support 94, and a center divider 96 that divides the cable management panel 54 into a front cable management/storage area 98 (for managing cables 62 from the chassis 10 at the front side 84 of the frame 52) and a rear cable management/storage area 100 (for managing cables 62 from the chassis 10 at the rear side 90 of the frame 52).

The front and rear cable management areas 98, 100 may be similarly configured. Each of the front and rear cable management areas 98, 100 defines a number of cable management structures 102 provided along a column extending from a top 104 of the panel 54 to the bottom 106 of the panel 54.

FIG. 24 illustrates a side view of the telecommunications frame 52 with only one set of the telecommunications chassis 10 mounted to one side (e.g., the front side 84) of the frame 52 and with a right vertical support 92 of the cable storage panel 54 removed to illustrate the internal cable management structures 102 of the cable storage panel 54. FIG. 25 illustrates close-up views of the top portion and the bottom portion of the telecommunications frame 52 of FIG. 24. Each of the cable management areas 98, 100 defined by the panel 54 includes a circular spool 108 adjacent the top 104 of the panel 54. Aligned vertically with the top circular spool 108, a separate cable management spool 110 having a hook-like cross-sectional profile is provided for each of the chassis 10 mounted on the frame 52. The spools 110 extend across the entire width of the cable management panel 54 between the right and left vertical supports 92, 94.

As illustrated in the example cable configuration shown in FIGS. 24 and 25, when a cable 62 enters the cable management panel 54 from a top 104 of the panel 54, the cable 62 enters between the top circular spool 108 and the center divider 96. A droop loop 63 is formed before the cable 62 is lead over the appropriate spool 110 toward the rear 33 of the cassettes 28 of a given chassis 10. Appropriate amount of slack may be provided by the droop loop 63 for slidable movement of the carrier modules 24 or the pivotable movement of the chassis 10.

The spool 110 positioned adjacent the bottom 106 of the cable storage area 98/100 defines a closed pocket 112 for capturing any cables 62 that might droop into the pocket 112.

Referring now to FIG. 21, according to the example embodiment of the telecommunications frame 52, in addition to cable management within the frame 52, the frame 52 may also include cable management features on an exterior of the frame 52 such as on one of the right and left vertical supports 92, 94 of the cable management panel 54. As shown in the depicted example, cables 62 may be managed by hook structures 114 located on the left vertical support 94 of the cable management panel 54. The hook structures 114 may manage cable routing for cross-connect applications wherein cables 62 may extend from a chassis 10 at the rear 90 of the frame 52 to a chassis 10 at the front 84 of the frame 52.

Cable management structures similar to the hook structures 114 of the present disclosure are described in further detail in U.S. Provisional Patent Application Ser. No. 61/789,572, filed Mar. 15, 2013, entitled “CABLE ROUTING AND STORAGE SYSTEM” and incorporated herein by reference in its entirety.

As shown in FIG. 21, cables 62 extending from the cassettes 28 of the carrier modules 24 are inserted into the split-ring cable management portions 70 of the modules 24. All of the cabling 62 that extends from the individual rings 72 of the modules 24 is then passed through the ring 60 of the slidable cable management module 56.

The alignment of the individual cable management rings 72 and also of the ring 60 of the cable management module 56 allows the carrier modules 24 to be slid along a right to left direction without disturbing any of the managed cables 62. The column of spools 110 within the cable management panel 54 and the cable slack provided in the form of droop loops 63 allow the carrier modules 24 to be slid one at a time right to left until the technician isolates and accesses the desired module 24.

Referring now to FIGS. 51-68, another embodiment of a carrier module 124 that is configured for slidable mounting on the telecommunications chassis 10 of FIGS. 1-8 is shown. The carrier module 124 includes a configuration similar to that of the module 24 of FIGS. 26-42. The carrier module 124 is configured for housing the same type of fiber optic equipment such as the fiber optic cassette 28 housed by the carrier module 24 of FIGS. 26-42 and is configured to be slidably mounted to the chassis 10 of FIGS. 1-8 in a similar manner.

The carrier module 124 defines a smaller cable management structure 170 in the form of a split-ring 172. The split-ring 172 defines a side profile (along a left to right direction) that does not extend past the housing portion 168 of the module 124. The notch 174 is provided at a front side of split ring 172 rather than a top side of the ring, unlike in the carrier module 24 of FIGS. 26-42.

Now referring to FIGS. 60-68 specifically, the carrier module 124 is shown with a slidable cable storage module 224 coupled thereto. The cable storage module 224 can be fixed to the carrier module 124 to form an integral structure 225. Different types of attachment methods may be used to fix the cable storage module 224 to the carrier module 124. The cable storage module 224 includes slide holes 278 that align with the slide holes 178 of the carrier module 124 for slidability therewith. The cable storage module 224 defines a cable storage structure 270 in the form of spool 272 on the left side 226 of the module 224, opposite from the side 228 to which the carrier module 224 is mounted. The spool 272 is configured to store any extra slack cabling 62 coming from or going to the cable ring 172 of the carrier module 124. The spool 272 defines cable retention portions 273 for retaining the cabling 62 within the cable storage module 224.

As noted above, the connection locations 26 provided by the chassis 10 of the present disclosure may be in the form of a cassette 28. An example of a fiber optic cassette 28 that is configured for insertion into the carrier modules 24, 124 disclosed herein is shown in FIGS. 43-50. As shown, one example of the cassette 28 may include fiber optic adapters 30 (LC or SC format) on one side (e.g., the front side of the carrier modules 24, 124 disclosed herein) wherein the opposite side (e.g., the rear side of the carrier modules 24, 124 disclosed herein) either has a rear connection location 26 in the form of a fiber optic connector such as a multi-fiber connector (MPO) or a cable extending outwardly therefrom. Cassettes similar to fiber optic cassettes 28 of the present disclosure are described in further detail in U.S. Patent Publication No. 2013/0089292, which is incorporated herein by reference in its entirety.

It should be noted that the fiber optic cassettes 28 shown and described in the present application are simply one type of a telecommunications device that may be used with the carrier modules 24, 124 of the present disclosure and that the modules may be configured to receive other types of devices.

Although in the foregoing description, terms such as “top,” “bottom,” “front,” “back,” “right,” “left,” “upper,” and “lower” were used for ease of description and illustration, no restriction is intended by such use of the terms. The telecommunications devices described herein can be used in any orientation, depending upon the desired application.

Having described the preferred aspects and embodiments of the present invention, modifications and equivalents of the disclosed concepts may readily occur to one skilled in the art. However, it is intended that such modifications and equivalents be included within the scope of the claims which are appended hereto. 

The invention claimed is:
 1. A fiber optic chassis comprising: a right rack mount portion and a left rack mount portion and at least one slide extending between the right and left rack mount portions, one of the right rack mount portion and the left rack mount portion defining at least a part of a hinge structure for pivotally mounting the fiber optic chassis to a telecommunications fixture; a plurality of modules mounted on the chassis along a horizontal stack extending between the right and left rack mount portions, each of the modules slidable on the slide along a direction extending between the right and left rack mount portions, wherein each module includes at least one slide hole that is completely surrounded around its periphery, the at least one slide hole extending through the module and defining open ends that are aligned along the direction extending between the right and left rack mount portions, the at least one slide hole configured to receive the slide of the chassis for allowing the module to be slidable between the right and left rack mount portions, each module configured to receive fiber optic equipment defining fiber optic connection locations.
 2. A fiber optic chassis according to claim 1, wherein each of the modules is populated with the fiber optic equipment that defines the fiber optic connection locations.
 3. A fiber optic chassis according to claim 2, wherein the fiber optic connection locations are defined by fiber optic adapters.
 4. A fiber optic chassis according to claim 3, wherein the fiber optic adapters are LC-format adapters.
 5. A fiber optic chassis according to claim 2, wherein the fiber optic equipment are fiber optic cassettes removably mounted to the modules, the fiber optic cassettes defining fiber optic adapters at a first end, a cable extending from an opposite second end, and fibers extending within the cassette from the cable to the fiber optic adapters.
 6. A fiber optic chassis according to claim 1, wherein each module defines a cable management structure for guiding cables extending to and from the fiber optic connection locations.
 7. A fiber optic chassis according to claim 6, wherein the cable management structure defines a split-ring configuration.
 8. A fiber optic chassis according to claim 1, wherein one of the right rack mount portion and the left rack mount portion defines a latch for locking the chassis in a closed position when the chassis is not pivoted with respect to the telecommunications fixture.
 9. A fiber optic chassis according to claim 1, further comprising a cable management module slidable along the same direction as the modules, the cable management module including a cable management structure in the form of a split-ring configured to manage cables extending to and from the modules. 